cq_1_201

#$&*

phy 201

Your 'cq_1_20.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

** CQ_1_20.1_labelMessages **

The problem:

The metal strap used in the Angular Velocity of a Strap experiment is constrained by a vertical push pin to rotate about a hole in a die. The die is glued in place to a massive tabletop. A rubber band is attached to a point 15 cm from the axis and stretched so that it exerts a force of 3 Newtons, directed perpendicular to the rod. If this force is unopposed it will accelerate the system rapidly. You want to attach a second rubber band 5 cm from the axis to prevent the system from rotating.

How much force will that rubber band have to exert?

answer/question/discussion: ->->->->->->->->->->->-> :

I'm not 100 percent sure but I believe it is 1 regardless I know it is less due to the rubber band being closer to center

#$&*

Once both of these forces are in place and the system is stationary, what (if anything) will happen if the glue holding the die to the tabletop comes loose?

answer/question/discussion: ->->->->->->->->->->->-> :

The ruler come forward towards the person holding the rubberbands

#$&*

** **

3 minutes

** **

@&

This is a good start.

You can return to this question after completing the Torque Experiment and the PHeT exercise for this assignment.

*@